ProveSource vs Trustmary
An independent, review-free comparison compiled by the SaaSTracker editorial team. Both products are profiled in full, and neither can pay for placement here.
The short answer
Both sides assessedProveSource compared with Trustmary
Both meter by site activity, but they sit on opposite sides of this category. Trustmary generates reviews through surveys and displays them as durable widgets with schema markup and A/B testing, at several hundred dollars a month once add-ons are included. ProveSource shows live activity popups from $24 with no collection capability. If budget is limited, ProveSource is the cheap conversion tactic and Trustmary is the expensive proof program, and they answer different questions.
Trustmary compared with ProveSource
ProveSource is a social proof notification tool metered by monthly unique visitors from $24 a month, showing live activity and review notifications as popups. Trustmary generates and measures the underlying reviews and displays them as durable widgets. They solve different problems and can coexist, but on a fixed budget the reviews are the asset and the notifications are the tactic, so Trustmary or a cheaper collection tool comes first.
Choose ProveSource if
Small and mid-sized ecommerce stores, course sellers, and funnel builders who want live activity notifications running cheaply, especially sites under 20,000 monthly unique visitors where the $24 tier or the free plan covers everything.
Choose Trustmary if
Established small and mid-sized businesses that already run a customer feedback program, want review generation triggered automatically from a CRM or accounting system, and will genuinely use survey routing, A/B testing, and analytics rather than only needing a wall of love.
Side by side
13 attributes| Attribute | ProveSource | Trustmary |
|---|---|---|
| Category | Social Proof | Social Proof |
| Starting price | $0 (free under 1,000 monthly unique visitors), then $24 per month billed yearly (Starter) (free plan available) | $0 (Solo), with a build-your-own plan from $26 per month (free plan available) |
| Pricing model | Freemium subscription metered by monthly unique visitors with unlimited impressions on every tier; five published tiers plus a custom Enterprise plan. | Usage-metered subscription with four plan names and a build-your-own configurator, priced by monthly widget views and monthly survey responses, with roughly eleven capabilities sold as separate monthly add-ons. |
| Free plan | Free covers 1,000 monthly unique visitors with unlimited impressions, all features included, live chat support, and ProveSource branding on notifications. | The Solo plan is free and allows 5 survey responses and 200 widget views per month, which is enough to evaluate the product and not enough to run anything. |
| Free trial | No separate trial; the free plan is the evaluation path | A free version and a free trial are both offered |
| Best for | Small and mid-sized ecommerce stores, course sellers, and funnel builders who want live activity notifications running cheaply, especially sites under 20,000 monthly unique visitors where the $24 tier or the free plan covers everything. | Established small and mid-sized businesses that already run a customer feedback program, want review generation triggered automatically from a CRM or accounting system, and will genuinely use survey routing, A/B testing, and analytics rather than only needing a wall of love. |
| Setup time | Under an hour. Paste the script or connect the platform integration, pick notification types, and switch it on. The vendor's claim of setup in minutes is fair for a basic configuration; tuning the timing rules properly takes longer. | A day or more. Survey design, routing logic, connector configuration, and widget placement each need decisions, and the CRM or accounting trigger setup is a real integration task rather than pasting a script tag. |
| Learning curve | Low. The interface is a settings panel rather than a platform, and the only genuinely consequential decisions are notification frequency, whether to hide on mobile, and whether to anonymise conversion details. | The steepest in this category. Conditional survey logic, sentiment routing thresholds, view metering, and an add-on catalogue all have to be understood before the tool is configured correctly. This is a platform to be administered, not a widget to be embedded. |
| Platforms | JavaScript site script, Shopify, WooCommerce, Wix, and Squarespace integrations, Kajabi, Thinkific, and ClickFunnels integrations, Zapier and webhooks, Automatic custom web form tracking | Web application, JavaScript embed widgets, Email, SMS, and QR code survey distribution, On-site survey popups, Browser-based video testimonial recording |
| Compliance | GDPR-facing privacy policy, Conversion anonymisation controls, No SOC 2 or ISO 27001 certification published | EU-based vendor operating under GDPR, No SOC 2 or ISO 27001 certification published |
| Founded | 2017 | 2015 |
| Headquarters | Be'er Sheva, Israel | Jyvaskyla, Finland |
| Ownership | Privately held; funding not published | Venture-backed |
Strengths and limitations
ProveSource
Strengths
- A permanently free plan for sites under 1,000 monthly unique visitors with all features included, which no direct competitor offers.
- Unlimited impressions on every tier, so notification frequency is a design decision rather than a budget one.
- Six notification types including Combo aggregates and a live visitor counter, giving lower-volume sites an honest way to show momentum.
- Branding removal at the first paid tier of $24, earlier than most tools in the wider category.
Limitations
- It collects nothing. There is no testimonial collection, storage, or wall of love, so this cannot be your only social proof tool.
- No documented A/B testing and no revenue attribution dashboard, so you are trusting that the notifications help rather than measuring it.
- Metering by monthly unique visitors means your own traffic growth raises the bill even when notification usage is flat.
- Notification popups are a maturing tactic with thinning returns as visitors grow familiar with the format.
Trustmary
Strengths
- 3-in-1 surveys that measure satisfaction, collect feedback, and request a review in one flow, with sentiment routing so only happy customers are asked to go public.
- CRM and accounting triggers through HubSpot, Pipedrive, and QuickBooks, so review requests fire on closed deals and paid invoices rather than on someone's memory.
- Genuine A/B testing of review widgets, which no other tool in this category offers, so the conversion claim can actually be measured.
- Google review collection and a dedicated Google review widget, which is the proof that matters most for local businesses.
Limitations
- Metering by monthly widget views means you are charged for your own website traffic; a popular page consumes allowance without generating a single testimonial.
- Roughly eleven capabilities are separate monthly add-ons, including white-labelling at $19, analytics at $59, and experiments at $29, so the effective price is far above the tier price.
- The free Solo plan's 200 monthly widget views and 5 survey responses make it unusable as anything but a demonstration.
- Survey response allowances on the named tiers are low relative to price: 10 per month on a configuration published at $203.
Pricing compared
ProveSource
Freemium subscription metered by monthly unique visitors with unlimited impressions on every tier; five published tiers plus a custom Enterprise plan.
- Free$0
- Starter$24
- Growth$45
- Monster$91
- Gorilla$183
- EnterpriseCustom
ProveSource is the value pick in notifications and the structure is what makes it so. Unlimited impressions on every tier including free means you are never deciding whether to show a notification because of budget, and a permanently free plan under 1,000 monthly unique visitors lets a new store run the tactic from day one at no cost. All features on all plans is a refreshing contrast with the add-on menus elsewhere in this category. What you do not get is proof that any of it works: there is no documented A/B testing and no revenue attribution dashboard, which is exactly where Fomo spends its price premium. Visitor metering also means the bill scales with your traffic rather than your usage, so at 500,000 monthly uniques the $183 figure is worth comparing carefully against Fomo's $149 for 300,000 notifications. For a site under 50,000 monthly visitors it is the obvious choice.
Trustmary
Usage-metered subscription with four plan names and a build-your-own configurator, priced by monthly widget views and monthly survey responses, with roughly eleven capabilities sold as separate monthly add-ons.
- Solo$0
- Build Your PlanFrom $26
- Starter$203
- Business$463
Trustmary is the most capable platform in this category and the worst value for the ordinary buyer, and both statements are true for the same reason. Survey routing, CRM and accounting triggers, A/B testing, and a properly staffed 26-person company behind the product are things no bootstrapped rival offers. But you pay for them twice: once through view and response meters that charge you for your own website traffic, and again through an add-on menu where white-labelling, analytics, experiments, and translations are each a separate monthly charge. A business that runs a real feedback program, triggers reviews from HubSpot or QuickBooks, and measures widget performance will find the money defensible. A business that wants testimonials on a landing page is looking at several hundred dollars a month for something Famewall does at $12, and should not be in this evaluation at all.
Editorial verdict on each
ProveSource
ProveSource is the sensible default for anyone who wants activity notifications without turning it into a project. A permanently free tier under 1,000 monthly unique visitors, unlimited impressions on every plan, branding removal at $24, six notification types including the Combo aggregates that let small stores show momentum honestly, and a genuinely deep set of timing, targeting, anonymisation, and localization controls including right-to-left support. The gap against Fomo is measurement: there is no documented split testing and no revenue attribution, so you are running the tactic on faith rather than evidence, and visitor metering means growth costs you money. Neither issue matters much on a site under 50,000 monthly visitors, where this is comfortably the best-value option. What it will never do is collect a testimonial, so treat it as the conversion layer sitting on top of whatever tool actually gathers your customer proof.
Read the full ProveSource profileTrustmary
Trustmary is the most serious company in this category and the one small businesses should be most careful about buying. The 3-in-1 survey with sentiment routing is the right way to generate reviews, CRM and QuickBooks triggers put the ask where it belongs, and A/B testing of review widgets is a capability nobody else here offers at any price. It is also backed by a properly staffed EU company rather than a solo founder, which matters if procurement is involved. Against that, the commercial model charges you for your own website traffic through widget view metering and unbundles roughly eleven capabilities into monthly add-ons, so removing the vendor's branding is a separate $19 line item and measuring your own widgets is another $29. Run the configurator with your real numbers before comparing anything. If you are building a measured feedback program, it is defensible. If you want testimonials on a page, you are in the wrong evaluation.
Read the full Trustmary profileProveSource profile last reviewed 2026-08-22; Trustmary last reviewed 2026-08-22. Pricing is compiled from public sources and can change without notice. See our methodology.